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Finding the Fourth Proportional to 286,370.60, 395,168.31 and 165,519.72

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Solution

The fourth proportional to 286,370.60, 395,168.31 and 165,519.72 is: 228,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,370.60 : 395,168.31 = 165,519.72 : x
  2. Step 2: Convert to fraction form
    286,370.60/395,168.31 = 165,519.72/x
  3. Step 3: Cross multiply
    286,370.60x = 395,168.31 × 165,519.72
  4. Step 4: Simplify right side
    286,370.60x = 65,408,148,024.07
  5. Step 5: Solve for x
    x = 65,408,148,024.07/286,370.60
  6. Step 6: Final answer
    x = 228,403.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.